Like Selena said, City of Hope concentrates on fighting cancer, diabetes and HIV/AIDS. If you’re not able to donate through the site she gives, you could text “GIVEHOPE CITIZEN” to 27722 to make a $10 donation.

And while Tom Hiddleston may be nominated for Best Villain for playing Loki in “Marvel’s The Avengers,” I keep thinking he might deserve the Best Hero award instead. Tom, who’s a UNICEF supporter like Selena, recently Tweeted about helping Syrian refugees, and now he’s taking part in the Live Below the Line campaign. Live Below the Line asks people to spend five days living as if they’re in extreme poverty so they can get a better understanding of it.

Tom’s been updating his Tweeps on how he’s been living on one pound a day (Americans taking part are supposed to live under $1.50), and Hugh Jackman, who got down and personal with poverty with his portrayal of Jean Valjean in “Les Mis,” made an inspiring vid to encourage people to take part in the campaign.